Cita APA

Herrnstein, R. J. (1964). Secondary reinforcement and rate of primary reinforcement.

Chicago Style Citation

Herrnstein, R. J. Secondary Reinforcement and Rate of Primary Reinforcement. 1964.

Cita MLA

Herrnstein, R. J. Secondary Reinforcement and Rate of Primary Reinforcement. 1964.

Atenció: Aquestes cites poden no estar 100% correctes.